Bear in mind, the list only features destinations in cities where the app actually works.

As far as Uber's tentacles may stretch, there are still a few places tourists flock to that don't have it, such as Bangkok and Vancouver.

Meanwhile, according to Uber's research, the three countries that clocked the most mileage this year are the U.S., Brazil and India.

And riders aren't just using Uber to hail rides in cars.

"We saw more than 4.1 million miles ridden on Jump bikes and scooters," says Uber's year-in-review, referring to the bike-sharing startup it acquired this year.

The report also looks at Uber Eats orders this year, serving up a roundup of the top 20 trendiest foods of 2018.

At the top of that list are toast, avocado (presumably ordered to go on the toast), goth food (black-colored foods), cucumber and wings.

Other insights include a look at rising food trends, with the report saying deliveries of clean eating staples are on the rise, as well as fermented foods like kimchi and kombucha, and milk alternatives such as pea milk.